Press to Flush call out
Press to Flush call out
(OP)
What is the appropriate callout/standard to use when calling out a pressed in plug? We would like to press the plug Flush and have a tolerance for under flush. We know our current callout is incorrect.





RE: Press to Flush call out
A profile tolerance works nicely here. Use the bottom of the hole as a datum.
RE: Press to Flush call out
A normal note would read something like 'flush to .005" underflush' or something like that.
Mike Halloran
Pembroke Pines, FL, USA
RE: Press to Flush call out
Yes, a note of flush and an enlarged sketch of that portion is a good practice.
SeasonLee
RE: Press to Flush call out
Ted
RE: Press to Flush call out
RE: Press to Flush call out
However, I think if the design intent is to have them flush, with some "under flush" acceptable, it would be clearest just to show an enlarged view with the plug 0.005 underflush and dimensioned as ".005 MAX".
That's my 2 cents. (Don't worry, I'll start a tab for you.)
-- MechEng2005
RE: Press to Flush call out
I agree that this would be the clearest way to define it. I've also seen instances where limit dimensions were used as you mentioned.
Joe
SW Office 2008 SP5.0
P4 3.0Ghz 3GB
ATI FireGL X1
RE: Press to Flush call out
Peter Stockhausen
Senior Design Analyst (Checker)
Infotech Aerospace Services
www.infotechpr.net
RE: Press to Flush call out
Intuitively the 'MAX' seems appealing until you get the situation Peter mentions.
Also at the end of the day, you can't really have an implied 'preferable end of the tolerance range' which is what you're trying to do by saying 'MAX'.
Either .005 underflush is OK or it's not.
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